Yesterday I was hanging with the guys from our Records dpt in the staff lounge. Their manager is a pretty nice talkative guy. Everything was going well until this happened..

Him: Hey you, I have an idea for an app. You can"definitely" help me, right? Or someone you know who also does the code thing..

Me: It depends. Just before you tell me about this idea, know that you'll be paying me or whoever will be doing this job unt..i..l *he interrupts

Him: Paying? I thought it was a one time or few hundreds of dollars. Why do I have to keep paying when you haven't finished the app?

Me: Did you finish your entire work this week?...but you're still getting paid next week, right?

Him: Oh crap, makes sense. Ok, how about I pay you the amount you charge then, that's it?

Me: See, you don't get it. I know once the app is done, you'll come back to me to fix and update things. When that time comes, you'll have to pay me again. And with the initial payment, don't just think you pay me and that's all... you'll...

Him: Crap, I have think more and come up with a plan for this.. nevermind, I'll keep you updated.

I think I made him sad knowing that, this sort of things doesn't happen easily.